Pith Number

pith:SZN7QSZZ

pith:2013:SZN7QSZZFV2LTOFUKZIWOE4NPB

not attested not anchored not stored refs pending

Dependence of Nebular Heavy-Element Abundance on H I Content for Spiral Galaxies

(2) The University of Arizona at Tucson, (3) Carnegie Observatories, Audrey Wright (1) ((1) The University of Texas at Austin, CA), Gregory A. Shields (1), Guillermo A. Blanc (3), Pasadena, Paul Robertson (1), Romeel Dav\'e (2)

arxiv:1306.2262 v1 · 2013-06-10 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:49:24.171484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

965bf84b392d74b9b8b4565167138d7863baacbc98ec1449f5abd984547e69a6

Aliases

arxiv: 1306.2262 · arxiv_version: 1306.2262v1 · doi: 10.48550/arxiv.1306.2262 · pith_short_12: SZN7QSZZFV2L · pith_short_16: SZN7QSZZFV2LTOFU · pith_short_8: SZN7QSZZ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SZN7QSZZFV2LTOFUKZIWOE4NPB \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 965bf84b392d74b9b8b4565167138d7863baacbc98ec1449f5abd984547e69a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f560e1dd512feba0c839b8c0e844112d917a82629ea2a5a0bb278a825e1a23d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-10T18:04:36Z",
    "title_canon_sha256": "6ebd7887ec815bc70d44dbecd295b597a156e218149e883df91ef4668ce87988"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2262",
    "kind": "arxiv",
    "version": 1
  }
}